`sf"1.We went skiing yesterday."`

`bb"⇒Quá khứ đơn vì có yesterday"`

`sf"2.Did you watch the men's basketball final on TV last night?"`

`bb"⇒Quá khứ đơn vì có last night"`

`sf"3.I didn't play badminton last Sunday because I was ill."`

`bb"⇒Quá khứ đơn vì có last Sunday"`

`sf"4.Sue and her friends are doing yoga in the gym now."`

`bb"⇒Hiện tại tiếp diễn vì có now."`

`sf"5.Last week,we studied how to surf.It was very interesting"`

`bb"⇒Quá khứ đơn vì có last week"`

`sf"6.He usually plays football with his friends on Saturdays."`

`bb"⇒Hiện ại đơn vì có  Saturdays."`

`sf"7.Where were the children yesterday morning?"`

`sf"They were at the swimming pool."`

`bb"⇒Quá khứ đơn vì có yesterday"`

`sf"8.His father teaches him how to play football at a very young age"`

1.We went skiing yesterday

2.Did you watch the men's basketball final on TV last night?

3.I didn't play badminton last sunday because i was ill

4.Sue and her friends are doing yoga in the gym now

5.Last week, we studied how to surf. It was very interesting

6.He usually plays football with his friends on Saturdays

7.Where were the children yesterday morning? They were at the swimming pool

8.His father taught him how to play foot ball when he was at a very young age

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